{ config, pkgs, lib, ... }: let video = [ "video=HDMI-A-3:1920x1080@144" "video=DP-3:1920x1080@240" #"video=DP-1:1920x1080@240" #"video=DP-2:1920x1080@240" #"video=HDMI-A-1:1920x1080@240" #"video=HDMI-A-2:1920x1080@240" ]; in { #Kernel boot.kernelPackages = pkgs.linuxPackages_zen; boot.kernelParams = [ "rcu_nocbs=8-15,24-31" "nohz_full=8-15,24-31" "vfio_iommu_type1.allow_unsafe_interrupts=1" "pcie_acs_override=downstream,multifunction" /*"pci-stub.ids=1002:744c"*/ "nox2apic" "nvme_core.default_ps_max_latency_us=0" "nvme_core.io_timeout=255" "nvme_core.max_retries=10" "nvme_core.shutdown_timeout=10" "amd_iommu=on" "iommu=pt" ] ++ video; boot.kernelModules = [ "pci-stub" "amdgpu" "i2c_dev" "kvm_amd" "vfio" "vfio_iommu_type1" "vfio-pci" "v4l2loopback" ]; boot.extraModprobeConfig = '' options kvm_amd nested=1 avic=1 npt=1 sev=0 options vfio_iommu_type1 allow_unsafe_interrupts=1 ''; boot.kernel.sysctl = { "vm.max_map_count" = 1000000; "vm.swappiness" = 10; }; boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "nvme" "usb_storage" "usbhid" "sd_mod" ]; boot.initrd.kernelModules = [ ]; boot.extraModulePackages = with config.boot.kernelPackages; [ v4l2loopback ]; boot.supportedFilesystems = [ "ntfs" "btrfs" "vfat" "exfat" "ext4" ]; boot.tmp.useTmpfs = true; #bootloader boot.loader.efi.canTouchEfiVariables = true; boot.loader.efi.efiSysMountPoint = "/boot/efi"; boot.loader.grub = { enable = true; efiSupport = true; device = "nodev"; gfxmodeEfi = pkgs.lib.mkDefault "1920x1080@240"; gfxmodeBios = pkgs.lib.mkDefault "1920x1080@240"; useOSProber = true; memtest86.enable = true; }; boot.binfmt.emulatedSystems = [ "aarch64-linux" ]; }